This creamy baked ziti recipe is an easy way to fill up the whole family. It can be made ahead of time if you prefer, or make it and bake it all at once.
Preheat oven to 350°F and butter a 9x13" baking dish.
Bring a pot of lightly salted water to a boil and cook ziti until al dente. Drain and set aside.
In a large skillet, brown ground beef seasoned with salt, pepper and garlic powder over medium heat. Add diced onion and cook until translucent.
Add spaghetti sauce and simmer 15 minutes.
Layer as follows: ½ of the ziti, ½ of sauce mixture, provolone cheese, sour cream, remaining ziti, remaining sauce mixture, then mozzarella cheese. Top with Parmesan cheese.
Bake for 30 minutes or until cheeses are melted. (If you made it ahead of time, pull casserole out of the refrigerator while the oven preheats and bake 45 minutes or so or until heated through and bubbly.)
Notes
If you can't find ziti, any tubular shape of pasta will work. Rigatoni and penne are great options.